Frequently Asked Questions
What is the difference between the Dimlux Expert Series MKII and the original Expert Series?
The MKII has a newer, more efficient ballast and a 750W boost mode on top of 600W. The ballast is 97% efficient with 30% less losses than the old one, and it sits in a more compact, lighter closed housing that protects the electronics better. You also get a 4-character scrolling status display that shows full status and error messages, and the Ultra Optics Hybrid 98 reflector as standard.
Can I run the Dimlux Expert Series MKII at 750W all the time?
Yes, the lamp is built for it. Dimlux say the 600/750W bulb stays about 95% efficient after 10,000 hours and is designed for both dimming and boosting. Boost pulls 770W at 3.4A though, so make sure your circuit, cooling and canopy temperatures can cope before you leave it there.
How big an area does a Dimlux Expert Series MKII 600W/750W cover?
At 600W it covers 0.78m2 minimum up to 2m2 maximum. At 750W that becomes 0.95m2 up to 2.4m2. A 1.2m x 1.2m tent sits comfortably inside that range at either setting.
What bulb does the Dimlux Expert Series MKII 600W/750W use?
A 600/750W 400V DE EL HPS lamp, developed for this fixture and already fitted. It is a single-spectrum bulb, mostly orange and red for heavy flowering with a bit of blue so it can handle veg too. It is a 400V lamp, so don't swap in a 230V bulb.
Does the Dimlux Expert Series MKII work with the Dimlux Maxi Controller?
Yes, it is compatible with the current Dimlux Maxi Controller. The MKII also has a Smartport interconnect, so you can plug in another ballast or a sensor. Add a plant temperature camera and the controller can dim the light to suit leaf surface temperature.
How much power does the Dimlux Expert Series MKII 600W/750W use?
616W at the 600W setting, which is 2.7A at 230V. On the 750W boost it draws 770W, which is 3.4A at 230V. Input is 230V plus or minus 10V at 50/60Hz.
Description
The Dimlux Expert Series MKII 600W/750W is a complete 400V double-ended HPS grow light, ballast, Ultra Optics Hybrid 98 reflector and lamp all in one. It is for growers who want serious flowering output from a 600W fixture, with the option to push it to 750W when the plants can use it. If you run a tent or a small room and want a hang-it-and-go light that works with the Dimlux Maxi Controller, this is the one.
Dimlux Expert Series MKII 600W/750W Key Facts
Dimlux reckon it beats any other 600W double-ended fixture on PAR output, efficiency and PAR maintenance. The numbers are good: 1506 µmol/s PAR at 750W and 1.94 µmol/J system efficacy. The ballast driver is 97% efficient with 30% less losses than the old Expert Series, and it lives in a smaller, lighter closed housing that protects the electronics.
| Brand and model | Dimlux Expert Series MKII 600W/750W |
| Lamp | HPS 600/750W 400V DE EL (fitted) |
| Light output PAR (PPF 400-700nm) | 1506 µmol/s at 750W |
| Light output PAR total (PPF 350-800nm) | 1657 µmol/s at 750W |
| System efficacy PAR (PPE 400-700nm) | 1.94 µmol/J at 700-750W |
| System efficacy PAR total (PPE 350-800nm) | 2.13 µmol/J at 700-750W |
| Power at 600W | 616W, 2.7A at 230V |
| Power at 750W boost | 770W, 3.4A at 230V |
| Coverage at 600W | 0.78m2 minimum, 2m2 maximum |
| Coverage at 750W | 0.95m2 minimum, 2.4m2 maximum |
| Voltage and frequency | 230V ±10V, 50/60Hz |
| Dimensions | 550 x 275 x 130mm |
| Weight | 5.1kg |
| Reflector | Ultra Optics Hybrid 98 |
In the box: the Dimlux Expert Series MKII 600W/750W fixture with the Ultra Optics Hybrid 98 reflector and the 600/750W 400V lamp already fitted. Have a proper look through the packaging before it goes in the bin, in case there are any small fittings, hangers or cables tucked in.
The Dimlux Expert Series MKII 600W/750W Lamp
The bulb is new and made for this fixture. Most 600W lamps fade quickly once you push them past 720W. This one stays around 95% efficient after 10,000 hours, and it is the only bulb designed for both dimming and boosting, so you get the best from it on boost without losing PAR.
It is a single-spectrum lamp, mostly orange and red for heavy flowering, with enough blue in there to veg under it as well. More plant-usable photons than other 600W bulbs, according to Dimlux.
Reflector, Ballast and Controls on the Dimlux Expert Series MKII
The Ultra Optics Hybrid 98 reflector is 98% efficient, thanks to Miro 98 silver and the single bounce clear sight design, so the light only hits the reflector once. It can be swapped for the Ultra Optics Wide 98 or Deep 98 reflectors, both also 98% efficient.
One push button steps the power output up and down, and a 4-character display scrolls full status and error messages, so no more cryptic codes. There is also an extra Smartport interconnect for another ballast or a sensor.
Connect it to a Dimlux Maxi Controller and you can run lighting, sunrise and sunset, CO2, heaters and humidifiers from one place. Add a Dimlux Plant Temperature Sensor Camera and the controller will dim the light to suit leaf surface temperature.
Hanging the Dimlux Expert Series MKII 600W/750W
Nothing to assemble. Hang it, plug it in and you are away. As a rough guide a 600W light wants around 40 to 50cm from the canopy, a bit more on boost. Keep an eye on leaf temperature when you first push it to 750W and adjust height as the plants stretch.
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